@article{silva_andrade_2004,  title={Isomorphic series of double sulfites of the Cu2SO3.MSO3.2H2O (M = Cu, Fe, Mn, and Cd) Type: a review},  volume={15},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532004000200003},  DOI={10.1590/S0103-50532004000200003},  number={2},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Silva, Luciana A. da and Andrade, Jailson B. de},  year={2004},  month={Mar},  pages={170–177} }